Size Effects in Residual Stress Formation during Quenching of Cylinders Made of Hot-Work Tool Steel
| Autor: | Petri Prevedel, Thomas Antretter, Manuel Schemmel, R. Schöngrundner, Werner Ecker |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Quenching
Materials science Article Subject Bainite General Engineering Nucleation Mechanics engineering.material Stress (mechanics) Residual stress Phase (matter) Martensite Tool steel lcsh:TA401-492 engineering lcsh:Materials of engineering and construction. Mechanics of materials General Materials Science |
| Zdroj: | Montanuniversität Leoben Advances in Materials Science and Engineering, Vol 2015 (2015) |
| ISSN: | 1687-8434 |
| DOI: | 10.1155/2015/678056 |
| Popis: | The present work investigates the residual stress formation and the evolution of phase fractions during the quenching process of cylindrical specimens of different sizes. The cylinders are made of hot-work tool steel grade X36CrMoV5-1. A phase transformation kinetic model in combination with a thermomechanical model is used to describe the quenching process. Two phase transformations are considered for developing a modelling scheme: the austenite-to-martensite transformation and the austenite-to-bainite transformation. The focus lies on the complex austenite-to-bainite transformation which can be observed at low cooling rates. For an appropriate description of the phase transformation behaviour nucleation and growth of bainite are taken into account. The thermomechanical model contains thermophysical data and flow curves for each phase. Transformation induced plasticity (TRIP) is modelled by considering phase dependent Greenwood-Johnson parameters for martensite and bainite, respectively. The influence of component size on residual stress formation is investigated by the finite element package Abaqus. Finally, for one cylinder size the simulation results are validated by X-ray stress measurements. |
| Databáze: | OpenAIRE |
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